You should all feel very safe now

The newest list of Safest Cities in America is now out. Here is the top 10 safest (and most dangerous) large cities. "Safest" is defined here as having the lowest violent/aggravated crimes per capita compared to the national average.
I note that, with the exception of New York City(!), the top ten safest are comprised of southern/southwestern cities while half of the top ten most dangerous are northern/northestern cities. Could weather conditions have an impact on crime rates, as full moons are anecdotaly said to do?
I'm not researching this in depth, but my hunch would be other factors that would influence these rankings would be size of police force, relative pay of police officers, quality of schools, cultural opportunities available, unemployment rate, and state gun law restrictions. Weight those factors as you will.

I wonder how these rankings would change if other (non-intentional) safety data were included, such as fatal automobile accidents.